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net/8021q/vlan_dev.c
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// SPDX-License-Identifier: GPL-2.0-or-later |
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/* -*- linux-c -*- * INET 802.1Q VLAN * Ethernet-type device handling. * * Authors: Ben Greear <greearb@candelatech.com> |
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* Please send support related email to: netdev@vger.kernel.org |
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* VLAN Home Page: http://www.candelatech.com/~greear/vlan.html |
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* |
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* Fixes: Mar 22 2001: Martin Bokaemper <mbokaemper@unispherenetworks.com> * - reset skb->pkt_type on incoming packets when MAC was changed * - see that changed MAC is saddr for outgoing packets * Oct 20, 2001: Ard van Breeman: * - Fix MC-list, finally. * - Flush MC-list on VLAN destroy. |
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*/ |
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#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
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#include <linux/module.h> |
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#include <linux/slab.h> |
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#include <linux/skbuff.h> #include <linux/netdevice.h> |
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#include <linux/net_tstamp.h> |
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#include <linux/etherdevice.h> |
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#include <linux/ethtool.h> |
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#include <linux/phy.h> |
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#include <net/arp.h> #include "vlan.h" #include "vlanproc.h" #include <linux/if_vlan.h> |
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#include <linux/netpoll.h> |
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/* |
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* Create the VLAN header for an arbitrary protocol layer |
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* * saddr=NULL means use device source address * daddr=NULL means leave destination address (eg unresolved arp) * * This is called when the SKB is moving down the stack towards the * physical devices. */ |
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static int vlan_dev_hard_header(struct sk_buff *skb, struct net_device *dev, unsigned short type, const void *daddr, const void *saddr, unsigned int len) |
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{ |
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struct vlan_dev_priv *vlan = vlan_dev_priv(dev); |
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struct vlan_hdr *vhdr; |
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unsigned int vhdrlen = 0; |
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u16 vlan_tci = 0; |
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int rc; |
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|
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if (!(vlan->flags & VLAN_FLAG_REORDER_HDR)) { |
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vhdr = skb_push(skb, VLAN_HLEN); |
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|
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vlan_tci = vlan->vlan_id; |
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vlan_tci |= vlan_dev_get_egress_qos_mask(dev, skb->priority); |
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vhdr->h_vlan_TCI = htons(vlan_tci); |
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/* |
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* Set the protocol type. For a packet of type ETH_P_802_3/2 we * put the length in here instead. |
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*/ |
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if (type != ETH_P_802_3 && type != ETH_P_802_2) |
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vhdr->h_vlan_encapsulated_proto = htons(type); |
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else |
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vhdr->h_vlan_encapsulated_proto = htons(len); |
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|
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skb->protocol = vlan->vlan_proto; type = ntohs(vlan->vlan_proto); |
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vhdrlen = VLAN_HLEN; |
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} /* Before delegating work to the lower layer, enter our MAC-address */ if (saddr == NULL) saddr = dev->dev_addr; |
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/* Now make the underlying real hard header */ |
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dev = vlan->real_dev; |
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rc = dev_hard_header(skb, dev, type, daddr, saddr, len + vhdrlen); if (rc > 0) rc += vhdrlen; |
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return rc; } |
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static inline netdev_tx_t vlan_netpoll_send_skb(struct vlan_dev_priv *vlan, struct sk_buff *skb) { #ifdef CONFIG_NET_POLL_CONTROLLER |
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return netpoll_send_skb(vlan->netpoll, skb); |
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#else BUG(); |
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return NETDEV_TX_OK; |
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#endif |
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} |
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static netdev_tx_t vlan_dev_hard_start_xmit(struct sk_buff *skb, struct net_device *dev) |
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{ |
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struct vlan_dev_priv *vlan = vlan_dev_priv(dev); |
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struct vlan_ethhdr *veth = (struct vlan_ethhdr *)(skb->data); |
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unsigned int len; int ret; |
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|
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/* Handle non-VLAN frames if they are sent to us, for example by DHCP. * * NOTE: THIS ASSUMES DIX ETHERNET, SPECIFICALLY NOT SUPPORTING * OTHER THINGS LIKE FDDI/TokenRing/802.3 SNAPs... */ |
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if (veth->h_vlan_proto != vlan->vlan_proto || |
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vlan->flags & VLAN_FLAG_REORDER_HDR) { |
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u16 vlan_tci; |
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vlan_tci = vlan->vlan_id; |
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vlan_tci |= vlan_dev_get_egress_qos_mask(dev, skb->priority); |
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__vlan_hwaccel_put_tag(skb, vlan->vlan_proto, vlan_tci); |
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} |
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skb->dev = vlan->real_dev; |
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len = skb->len; |
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if (unlikely(netpoll_tx_running(dev))) return vlan_netpoll_send_skb(vlan, skb); |
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ret = dev_queue_xmit(skb); |
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if (likely(ret == NET_XMIT_SUCCESS || ret == NET_XMIT_CN)) { |
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struct vlan_pcpu_stats *stats; |
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stats = this_cpu_ptr(vlan->vlan_pcpu_stats); |
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u64_stats_update_begin(&stats->syncp); stats->tx_packets++; stats->tx_bytes += len; |
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u64_stats_update_end(&stats->syncp); |
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} else { |
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this_cpu_inc(vlan->vlan_pcpu_stats->tx_dropped); |
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} |
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|
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return ret; |
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} |
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static int vlan_dev_change_mtu(struct net_device *dev, int new_mtu) |
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{ |
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struct net_device *real_dev = vlan_dev_priv(dev)->real_dev; unsigned int max_mtu = real_dev->mtu; if (netif_reduces_vlan_mtu(real_dev)) max_mtu -= VLAN_HLEN; if (max_mtu < new_mtu) |
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return -ERANGE; dev->mtu = new_mtu; return 0; } |
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void vlan_dev_set_ingress_priority(const struct net_device *dev, |
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u32 skb_prio, u16 vlan_prio) |
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{ |
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struct vlan_dev_priv *vlan = vlan_dev_priv(dev); |
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if (vlan->ingress_priority_map[vlan_prio & 0x7] && !skb_prio) vlan->nr_ingress_mappings--; else if (!vlan->ingress_priority_map[vlan_prio & 0x7] && skb_prio) vlan->nr_ingress_mappings++; vlan->ingress_priority_map[vlan_prio & 0x7] = skb_prio; |
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} |
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int vlan_dev_set_egress_priority(const struct net_device *dev, |
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u32 skb_prio, u16 vlan_prio) |
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{ |
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struct vlan_dev_priv *vlan = vlan_dev_priv(dev); |
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struct vlan_priority_tci_mapping *mp = NULL; struct vlan_priority_tci_mapping *np; |
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u32 vlan_qos = (vlan_prio << VLAN_PRIO_SHIFT) & VLAN_PRIO_MASK; |
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|
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/* See if a priority mapping exists.. */ |
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mp = vlan->egress_priority_map[skb_prio & 0xF]; |
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while (mp) { if (mp->priority == skb_prio) { |
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if (mp->vlan_qos && !vlan_qos) vlan->nr_egress_mappings--; else if (!mp->vlan_qos && vlan_qos) vlan->nr_egress_mappings++; mp->vlan_qos = vlan_qos; |
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return 0; |
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} |
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mp = mp->next; |
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} |
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/* Create a new mapping then. */ |
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mp = vlan->egress_priority_map[skb_prio & 0xF]; |
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np = kmalloc(sizeof(struct vlan_priority_tci_mapping), GFP_KERNEL); if (!np) return -ENOBUFS; np->next = mp; np->priority = skb_prio; |
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np->vlan_qos = vlan_qos; |
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/* Before inserting this element in hash table, make sure all its fields * are committed to memory. |
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* coupled with smp_rmb() in vlan_dev_get_egress_qos_mask() |
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*/ smp_wmb(); |
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vlan->egress_priority_map[skb_prio & 0xF] = np; if (vlan_qos) vlan->nr_egress_mappings++; |
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return 0; |
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} |
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/* Flags are defined in the vlan_flags enum in * include/uapi/linux/if_vlan.h file. */ |
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int vlan_dev_change_flags(const struct net_device *dev, u32 flags, u32 mask) |
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{ |
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struct vlan_dev_priv *vlan = vlan_dev_priv(dev); |
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u32 old_flags = vlan->flags; |
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if (mask & ~(VLAN_FLAG_REORDER_HDR | VLAN_FLAG_GVRP | |
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VLAN_FLAG_LOOSE_BINDING | VLAN_FLAG_MVRP | VLAN_FLAG_BRIDGE_BINDING)) |
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return -EINVAL; vlan->flags = (old_flags & ~mask) | (flags & mask); |
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if (netif_running(dev) && (vlan->flags ^ old_flags) & VLAN_FLAG_GVRP) { if (vlan->flags & VLAN_FLAG_GVRP) vlan_gvrp_request_join(dev); else vlan_gvrp_request_leave(dev); } |
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if (netif_running(dev) && (vlan->flags ^ old_flags) & VLAN_FLAG_MVRP) { if (vlan->flags & VLAN_FLAG_MVRP) vlan_mvrp_request_join(dev); else vlan_mvrp_request_leave(dev); } |
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return 0; |
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} |
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void vlan_dev_get_realdev_name(const struct net_device *dev, char *result) |
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{ |
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strncpy(result, vlan_dev_priv(dev)->real_dev->name, 23); |
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} |
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bool vlan_dev_inherit_address(struct net_device *dev, struct net_device *real_dev) { if (dev->addr_assign_type != NET_ADDR_STOLEN) return false; ether_addr_copy(dev->dev_addr, real_dev->dev_addr); call_netdevice_notifiers(NETDEV_CHANGEADDR, dev); return true; } |
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static int vlan_dev_open(struct net_device *dev) |
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{ |
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struct vlan_dev_priv *vlan = vlan_dev_priv(dev); |
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struct net_device *real_dev = vlan->real_dev; int err; |
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if (!(real_dev->flags & IFF_UP) && !(vlan->flags & VLAN_FLAG_LOOSE_BINDING)) |
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return -ENETDOWN; |
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if (!ether_addr_equal(dev->dev_addr, real_dev->dev_addr) && !vlan_dev_inherit_address(dev, real_dev)) { |
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err = dev_uc_add(real_dev, dev->dev_addr); |
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if (err < 0) |
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goto out; |
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} |
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|
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if (dev->flags & IFF_ALLMULTI) { err = dev_set_allmulti(real_dev, 1); if (err < 0) goto del_unicast; } if (dev->flags & IFF_PROMISC) { err = dev_set_promiscuity(real_dev, 1); if (err < 0) goto clear_allmulti; } |
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ether_addr_copy(vlan->real_dev_addr, real_dev->dev_addr); |
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|
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if (vlan->flags & VLAN_FLAG_GVRP) vlan_gvrp_request_join(dev); |
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if (vlan->flags & VLAN_FLAG_MVRP) vlan_mvrp_request_join(dev); |
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if (netif_carrier_ok(real_dev) && !(vlan->flags & VLAN_FLAG_BRIDGE_BINDING)) |
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netif_carrier_on(dev); |
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return 0; |
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clear_allmulti: if (dev->flags & IFF_ALLMULTI) dev_set_allmulti(real_dev, -1); del_unicast: |
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if (!ether_addr_equal(dev->dev_addr, real_dev->dev_addr)) |
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dev_uc_del(real_dev, dev->dev_addr); |
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out: |
adc667e84 vlan: update vlan... |
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netif_carrier_off(dev); |
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return err; |
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} |
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static int vlan_dev_stop(struct net_device *dev) |
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{ |
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struct vlan_dev_priv *vlan = vlan_dev_priv(dev); |
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struct net_device *real_dev = vlan->real_dev; |
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dev_mc_unsync(real_dev, dev); |
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dev_uc_unsync(real_dev, dev); |
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if (dev->flags & IFF_ALLMULTI) dev_set_allmulti(real_dev, -1); if (dev->flags & IFF_PROMISC) dev_set_promiscuity(real_dev, -1); |
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if (!ether_addr_equal(dev->dev_addr, real_dev->dev_addr)) |
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dev_uc_del(real_dev, dev->dev_addr); |
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|
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if (!(vlan->flags & VLAN_FLAG_BRIDGE_BINDING)) netif_carrier_off(dev); |
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return 0; } |
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static int vlan_dev_set_mac_address(struct net_device *dev, void *p) |
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{ |
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struct net_device *real_dev = vlan_dev_priv(dev)->real_dev; |
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struct sockaddr *addr = p; int err; if (!is_valid_ether_addr(addr->sa_data)) return -EADDRNOTAVAIL; if (!(dev->flags & IFF_UP)) goto out; |
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if (!ether_addr_equal(addr->sa_data, real_dev->dev_addr)) { |
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err = dev_uc_add(real_dev, addr->sa_data); |
39aaac114 [VLAN]: Allow set... |
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if (err < 0) return err; } |
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if (!ether_addr_equal(dev->dev_addr, real_dev->dev_addr)) |
a748ee242 net: move address... |
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dev_uc_del(real_dev, dev->dev_addr); |
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out: |
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ether_addr_copy(dev->dev_addr, addr->sa_data); |
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return 0; } |
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static int vlan_dev_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) |
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{ |
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struct net_device *real_dev = vlan_dev_priv(dev)->real_dev; |
656299f70 vlan: convert to ... |
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const struct net_device_ops *ops = real_dev->netdev_ops; |
1da177e4c Linux-2.6.12-rc2 |
331 332 333 334 335 |
struct ifreq ifrr; int err = -EOPNOTSUPP; strncpy(ifrr.ifr_name, real_dev->name, IFNAMSIZ); ifrr.ifr_ifru = ifr->ifr_ifru; |
2029cc2c8 [VLAN]: checkpatc... |
336 |
switch (cmd) { |
873017af7 vlan: disable SIO... |
337 338 339 |
case SIOCSHWTSTAMP: if (!net_eq(dev_net(dev), &init_net)) break; |
df561f668 treewide: Use fal... |
340 |
fallthrough; |
1da177e4c Linux-2.6.12-rc2 |
341 342 343 |
case SIOCGMIIPHY: case SIOCGMIIREG: case SIOCSMIIREG: |
a6111d3c9 vlan: Pass SIOC[S... |
344 |
case SIOCGHWTSTAMP: |
656299f70 vlan: convert to ... |
345 346 |
if (netif_device_present(real_dev) && ops->ndo_do_ioctl) err = ops->ndo_do_ioctl(real_dev, &ifrr, cmd); |
1da177e4c Linux-2.6.12-rc2 |
347 |
break; |
1da177e4c Linux-2.6.12-rc2 |
348 |
} |
122952fc2 [NET] 8021Q: Fix ... |
349 |
if (!err) |
1da177e4c Linux-2.6.12-rc2 |
350 351 352 353 |
ifr->ifr_ifru = ifrr.ifr_ifru; return err; } |
cc883d16c vlan: add neigh_s... |
354 355 |
static int vlan_dev_neigh_setup(struct net_device *dev, struct neigh_parms *pa) { |
7da82c06d vlan: rename vlan... |
356 |
struct net_device *real_dev = vlan_dev_priv(dev)->real_dev; |
cc883d16c vlan: add neigh_s... |
357 358 359 360 |
const struct net_device_ops *ops = real_dev->netdev_ops; int err = 0; if (netif_device_present(real_dev) && ops->ndo_neigh_setup) |
9d40bbda5 vlan: Fix vlan-in... |
361 |
err = ops->ndo_neigh_setup(real_dev, pa); |
cc883d16c vlan: add neigh_s... |
362 363 364 |
return err; } |
f4d5392e5 vlan: use IS_ENAB... |
365 |
#if IS_ENABLED(CONFIG_FCOE) |
b85daa532 vlan: adds fcoe o... |
366 367 368 |
static int vlan_dev_fcoe_ddp_setup(struct net_device *dev, u16 xid, struct scatterlist *sgl, unsigned int sgc) { |
7da82c06d vlan: rename vlan... |
369 |
struct net_device *real_dev = vlan_dev_priv(dev)->real_dev; |
b85daa532 vlan: adds fcoe o... |
370 371 372 373 374 375 376 377 378 379 380 |
const struct net_device_ops *ops = real_dev->netdev_ops; int rc = 0; if (ops->ndo_fcoe_ddp_setup) rc = ops->ndo_fcoe_ddp_setup(real_dev, xid, sgl, sgc); return rc; } static int vlan_dev_fcoe_ddp_done(struct net_device *dev, u16 xid) { |
7da82c06d vlan: rename vlan... |
381 |
struct net_device *real_dev = vlan_dev_priv(dev)->real_dev; |
b85daa532 vlan: adds fcoe o... |
382 383 384 385 386 387 388 389 |
const struct net_device_ops *ops = real_dev->netdev_ops; int len = 0; if (ops->ndo_fcoe_ddp_done) len = ops->ndo_fcoe_ddp_done(real_dev, xid); return len; } |
0af46d997 vlan: Add support... |
390 391 392 |
static int vlan_dev_fcoe_enable(struct net_device *dev) { |
7da82c06d vlan: rename vlan... |
393 |
struct net_device *real_dev = vlan_dev_priv(dev)->real_dev; |
0af46d997 vlan: Add support... |
394 395 396 397 398 399 400 401 402 403 |
const struct net_device_ops *ops = real_dev->netdev_ops; int rc = -EINVAL; if (ops->ndo_fcoe_enable) rc = ops->ndo_fcoe_enable(real_dev); return rc; } static int vlan_dev_fcoe_disable(struct net_device *dev) { |
7da82c06d vlan: rename vlan... |
404 |
struct net_device *real_dev = vlan_dev_priv(dev)->real_dev; |
0af46d997 vlan: Add support... |
405 406 407 408 409 410 411 |
const struct net_device_ops *ops = real_dev->netdev_ops; int rc = -EINVAL; if (ops->ndo_fcoe_disable) rc = ops->ndo_fcoe_disable(real_dev); return rc; } |
d65347994 vlan: Add support... |
412 |
|
0a89eb92d vlan: conditional... |
413 414 |
static int vlan_dev_fcoe_ddp_target(struct net_device *dev, u16 xid, struct scatterlist *sgl, unsigned int sgc) |
d65347994 vlan: Add support... |
415 |
{ |
7da82c06d vlan: rename vlan... |
416 |
struct net_device *real_dev = vlan_dev_priv(dev)->real_dev; |
d65347994 vlan: Add support... |
417 |
const struct net_device_ops *ops = real_dev->netdev_ops; |
0a89eb92d vlan: conditional... |
418 419 420 421 |
int rc = 0; if (ops->ndo_fcoe_ddp_target) rc = ops->ndo_fcoe_ddp_target(real_dev, xid, sgl, sgc); |
d65347994 vlan: Add support... |
422 |
|
d65347994 vlan: Add support... |
423 424 |
return rc; } |
0a89eb92d vlan: conditional... |
425 |
#endif |
4ea09c9ca vlan: add support... |
426 |
|
0a89eb92d vlan: conditional... |
427 428 |
#ifdef NETDEV_FCOE_WWNN static int vlan_dev_fcoe_get_wwn(struct net_device *dev, u64 *wwn, int type) |
4ea09c9ca vlan: add support... |
429 |
{ |
7da82c06d vlan: rename vlan... |
430 |
struct net_device *real_dev = vlan_dev_priv(dev)->real_dev; |
4ea09c9ca vlan: add support... |
431 |
const struct net_device_ops *ops = real_dev->netdev_ops; |
0a89eb92d vlan: conditional... |
432 |
int rc = -EINVAL; |
4ea09c9ca vlan: add support... |
433 |
|
0a89eb92d vlan: conditional... |
434 435 |
if (ops->ndo_fcoe_get_wwn) rc = ops->ndo_fcoe_get_wwn(real_dev, wwn, type); |
4ea09c9ca vlan: add support... |
436 437 |
return rc; } |
b85daa532 vlan: adds fcoe o... |
438 |
#endif |
ef3eb3e59 [VLAN]: Move devi... |
439 |
static void vlan_dev_change_rx_flags(struct net_device *dev, int change) |
6c78dcbd4 [VLAN]: Fix promi... |
440 |
{ |
7da82c06d vlan: rename vlan... |
441 |
struct net_device *real_dev = vlan_dev_priv(dev)->real_dev; |
6c78dcbd4 [VLAN]: Fix promi... |
442 |
|
deede2fab vlan: Don't propa... |
443 444 445 446 447 448 |
if (dev->flags & IFF_UP) { if (change & IFF_ALLMULTI) dev_set_allmulti(real_dev, dev->flags & IFF_ALLMULTI ? 1 : -1); if (change & IFF_PROMISC) dev_set_promiscuity(real_dev, dev->flags & IFF_PROMISC ? 1 : -1); } |
6c78dcbd4 [VLAN]: Fix promi... |
449 |
} |
e83a2ea85 [VLAN]: set_rx_mo... |
450 |
static void vlan_dev_set_rx_mode(struct net_device *vlan_dev) |
1da177e4c Linux-2.6.12-rc2 |
451 |
{ |
d38569ab2 vlan: Fix lockdep... |
452 453 |
dev_mc_sync(vlan_dev_priv(vlan_dev)->real_dev, vlan_dev); dev_uc_sync(vlan_dev_priv(vlan_dev)->real_dev, vlan_dev); |
1da177e4c Linux-2.6.12-rc2 |
454 |
} |
ef3eb3e59 [VLAN]: Move devi... |
455 |
|
1a33e10e4 net: partially re... |
456 457 458 459 460 461 |
/* * vlan network devices have devices nesting below it, and are a special * "super class" of normal network devices; split their locks off into a * separate class since they always nest. */ static struct lock_class_key vlan_netdev_xmit_lock_key; |
845e0ebb4 net: change addr_... |
462 |
static struct lock_class_key vlan_netdev_addr_lock_key; |
1a33e10e4 net: partially re... |
463 464 465 466 467 468 469 |
static void vlan_dev_set_lockdep_one(struct net_device *dev, struct netdev_queue *txq, void *unused) { lockdep_set_class(&txq->_xmit_lock, &vlan_netdev_xmit_lock_key); } |
be74294ff net: get rid of l... |
470 |
static void vlan_dev_set_lockdep_class(struct net_device *dev) |
1a33e10e4 net: partially re... |
471 |
{ |
be74294ff net: get rid of l... |
472 473 |
lockdep_set_class(&dev->addr_list_lock, &vlan_netdev_addr_lock_key); |
1a33e10e4 net: partially re... |
474 475 |
netdev_for_each_tx_queue(dev, vlan_dev_set_lockdep_one, NULL); } |
ef3eb3e59 [VLAN]: Move devi... |
476 477 |
static const struct header_ops vlan_header_ops = { .create = vlan_dev_hard_header, |
ef3eb3e59 [VLAN]: Move devi... |
478 479 |
.parse = eth_header_parse, }; |
2205369a3 vlan: Fix header ... |
480 481 482 483 484 485 486 |
static int vlan_passthru_hard_header(struct sk_buff *skb, struct net_device *dev, unsigned short type, const void *daddr, const void *saddr, unsigned int len) { struct vlan_dev_priv *vlan = vlan_dev_priv(dev); struct net_device *real_dev = vlan->real_dev; |
dd38743b4 vlan: Set correct... |
487 488 |
if (saddr == NULL) saddr = dev->dev_addr; |
2205369a3 vlan: Fix header ... |
489 490 491 492 493 |
return dev_hard_header(skb, real_dev, type, daddr, saddr, len); } static const struct header_ops vlan_passthru_header_ops = { .create = vlan_passthru_hard_header, |
2205369a3 vlan: Fix header ... |
494 495 |
.parse = eth_header_parse, }; |
e949b09b7 vlan: set sysfs d... |
496 497 498 |
static struct device_type vlan_type = { .name = "vlan", }; |
213b15ca8 vlan: remove ndo_... |
499 |
static const struct net_device_ops vlan_netdev_ops; |
f7d1b9f5a vlan: fix convert... |
500 |
|
ef3eb3e59 [VLAN]: Move devi... |
501 502 |
static int vlan_dev_init(struct net_device *dev) { |
76052d8c4 vlan: do not tran... |
503 504 |
struct vlan_dev_priv *vlan = vlan_dev_priv(dev); struct net_device *real_dev = vlan->real_dev; |
ef3eb3e59 [VLAN]: Move devi... |
505 |
|
adc667e84 vlan: update vlan... |
506 |
netif_carrier_off(dev); |
ef3eb3e59 [VLAN]: Move devi... |
507 |
/* IFF_BROADCAST|IFF_MULTICAST; ??? */ |
194dbcc8a net: init_vlan sh... |
508 509 |
dev->flags = real_dev->flags & ~(IFF_UP | IFF_PROMISC | IFF_ALLMULTI | IFF_MASTER | IFF_SLAVE); |
ef3eb3e59 [VLAN]: Move devi... |
510 511 512 |
dev->state = (real_dev->state & ((1<<__LINK_STATE_NOCARRIER) | (1<<__LINK_STATE_DORMANT))) | (1<<__LINK_STATE_PRESENT); |
76052d8c4 vlan: do not tran... |
513 514 |
if (vlan->flags & VLAN_FLAG_BRIDGE_BINDING) dev->state |= (1 << __LINK_STATE_NOCARRIER); |
a188222b6 net: Rename NETIF... |
515 |
dev->hw_features = NETIF_F_HW_CSUM | NETIF_F_SG | |
53f6b708f vlan: Add ability... |
516 |
NETIF_F_FRAGLIST | NETIF_F_GSO_SOFTWARE | |
7dad9937e net: vlan: add su... |
517 |
NETIF_F_GSO_ENCAP_ALL | |
53692b1de sctp: Rename NETI... |
518 |
NETIF_F_HIGHDMA | NETIF_F_SCTP_CRC | |
62f2a3a48 net: remove NETIF... |
519 |
NETIF_F_ALL_FCOE; |
88997e420 net/8021q: create... |
520 |
dev->features |= dev->hw_features | NETIF_F_LLTX; |
1ae4be22f vlan: vlan device... |
521 |
dev->gso_max_size = real_dev->gso_max_size; |
f6773c5e9 vlan: propagate g... |
522 |
dev->gso_max_segs = real_dev->gso_max_segs; |
2adb956b0 vlan: Warn the us... |
523 524 525 |
if (dev->features & NETIF_F_VLAN_FEATURES) netdev_warn(real_dev, "VLAN features are set incorrectly. Q-in-Q configurations may not work correctly. "); |
8d463504c vlan: Add feature... |
526 |
dev->vlan_features = real_dev->vlan_features & ~NETIF_F_ALL_FCOE; |
7dad9937e net: vlan: add su... |
527 |
dev->hw_enc_features = vlan_tnl_features(real_dev); |
8b6912a50 net: vlan: Inheri... |
528 |
dev->mpls_features = real_dev->mpls_features; |
5fb135705 [VLAN]: Propagate... |
529 |
|
ef3eb3e59 [VLAN]: Move devi... |
530 531 |
/* ipv6 shared card related stuff */ dev->dev_id = real_dev->dev_id; |
308453aa9 vlan: Propagate M... |
532 533 534 535 |
if (is_zero_ether_addr(dev->dev_addr)) { ether_addr_copy(dev->dev_addr, real_dev->dev_addr); dev->addr_assign_type = NET_ADDR_STOLEN; } |
ef3eb3e59 [VLAN]: Move devi... |
536 537 |
if (is_zero_ether_addr(dev->broadcast)) memcpy(dev->broadcast, real_dev->broadcast, dev->addr_len); |
f4d5392e5 vlan: use IS_ENAB... |
538 |
#if IS_ENABLED(CONFIG_FCOE) |
b85daa532 vlan: adds fcoe o... |
539 540 |
dev->fcoe_ddp_xid = real_dev->fcoe_ddp_xid; #endif |
d870bfb9d vlan: should take... |
541 |
dev->needed_headroom = real_dev->needed_headroom; |
76052d8c4 vlan: do not tran... |
542 |
if (vlan_hw_offload_capable(real_dev->features, vlan->vlan_proto)) { |
2205369a3 vlan: Fix header ... |
543 |
dev->header_ops = &vlan_passthru_header_ops; |
ef3eb3e59 [VLAN]: Move devi... |
544 |
dev->hard_header_len = real_dev->hard_header_len; |
ef3eb3e59 [VLAN]: Move devi... |
545 546 547 |
} else { dev->header_ops = &vlan_header_ops; dev->hard_header_len = real_dev->hard_header_len + VLAN_HLEN; |
ef3eb3e59 [VLAN]: Move devi... |
548 |
} |
213b15ca8 vlan: remove ndo_... |
549 |
dev->netdev_ops = &vlan_netdev_ops; |
636e19a34 net: consolidate ... |
550 |
|
e949b09b7 vlan: set sysfs d... |
551 |
SET_NETDEV_DEVTYPE(dev, &vlan_type); |
be74294ff net: get rid of l... |
552 |
vlan_dev_set_lockdep_class(dev); |
1a33e10e4 net: partially re... |
553 |
|
76052d8c4 vlan: do not tran... |
554 555 |
vlan->vlan_pcpu_stats = netdev_alloc_pcpu_stats(struct vlan_pcpu_stats); if (!vlan->vlan_pcpu_stats) |
9793241fe vlan: Precise RX ... |
556 |
return -ENOMEM; |
ef3eb3e59 [VLAN]: Move devi... |
557 558 |
return 0; } |
9bbd917e0 vlan: fix memory ... |
559 560 |
/* Note: this function might be called multiple times for the same device. */ void vlan_dev_uninit(struct net_device *dev) |
23556323b [VLAN]: Fix egres... |
561 562 |
{ struct vlan_priority_tci_mapping *pm; |
7da82c06d vlan: rename vlan... |
563 |
struct vlan_dev_priv *vlan = vlan_dev_priv(dev); |
23556323b [VLAN]: Fix egres... |
564 565 566 567 568 569 570 571 572 |
int i; for (i = 0; i < ARRAY_SIZE(vlan->egress_priority_map); i++) { while ((pm = vlan->egress_priority_map[i]) != NULL) { vlan->egress_priority_map[i] = pm->next; kfree(pm); } } } |
c8f44affb net: introduce an... |
573 574 |
static netdev_features_t vlan_dev_fix_features(struct net_device *dev, netdev_features_t features) |
8a0427bb6 vlan: convert VLA... |
575 |
{ |
7da82c06d vlan: rename vlan... |
576 |
struct net_device *real_dev = vlan_dev_priv(dev)->real_dev; |
b29d31451 net: vlan,ethtool... |
577 |
netdev_features_t old_features = features; |
8403debee vlan: Keep NETIF_... |
578 |
netdev_features_t lower_features; |
8a0427bb6 vlan: convert VLA... |
579 |
|
8403debee vlan: Keep NETIF_... |
580 581 582 |
lower_features = netdev_intersect_features((real_dev->vlan_features | NETIF_F_RXCSUM), real_dev->features); |
712ae51af net: vlan: enable... |
583 |
|
8403debee vlan: Keep NETIF_... |
584 585 586 587 588 589 |
/* Add HW_CSUM setting to preserve user ability to control * checksum offload on the vlan device. */ if (lower_features & (NETIF_F_IP_CSUM|NETIF_F_IPV6_CSUM)) lower_features |= NETIF_F_HW_CSUM; features = netdev_intersect_features(features, lower_features); |
53f6b708f vlan: Add ability... |
590 |
features |= old_features & (NETIF_F_SOFT_FEATURES | NETIF_F_GSO_SOFTWARE); |
f0a619ccf net: Fix vlan_fea... |
591 |
features |= NETIF_F_LLTX; |
8a0427bb6 vlan: convert VLA... |
592 593 594 |
return features; } |
577097981 net: 8021q: use _... |
595 596 |
static int vlan_ethtool_get_link_ksettings(struct net_device *dev, struct ethtool_link_ksettings *cmd) |
b30200616 vlan: propogate e... |
597 |
{ |
7da82c06d vlan: rename vlan... |
598 |
const struct vlan_dev_priv *vlan = vlan_dev_priv(dev); |
4bc71cb98 net: consolidate ... |
599 |
|
577097981 net: 8021q: use _... |
600 |
return __ethtool_get_link_ksettings(vlan->real_dev, cmd); |
b30200616 vlan: propogate e... |
601 602 603 604 605 |
} static void vlan_ethtool_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info) { |
7826d43f2 ethtool: fix drvi... |
606 607 608 |
strlcpy(info->driver, vlan_fullname, sizeof(info->driver)); strlcpy(info->version, vlan_version, sizeof(info->version)); strlcpy(info->fw_version, "N/A", sizeof(info->fw_version)); |
b30200616 vlan: propogate e... |
609 |
} |
37dd9255b vlan: Pass ethtoo... |
610 611 612 613 614 |
static int vlan_ethtool_get_ts_info(struct net_device *dev, struct ethtool_ts_info *info) { const struct vlan_dev_priv *vlan = vlan_dev_priv(dev); const struct ethtool_ops *ops = vlan->real_dev->ethtool_ops; |
ec1d8ccb0 vlan: also check ... |
615 |
struct phy_device *phydev = vlan->real_dev->phydev; |
37dd9255b vlan: Pass ethtoo... |
616 |
|
dfe6d68fc net: vlan: Use th... |
617 618 |
if (phy_has_tsinfo(phydev)) { return phy_ts_info(phydev, info); |
ec1d8ccb0 vlan: also check ... |
619 |
} else if (ops->get_ts_info) { |
37dd9255b vlan: Pass ethtoo... |
620 621 622 623 624 625 626 627 628 |
return ops->get_ts_info(vlan->real_dev, info); } else { info->so_timestamping = SOF_TIMESTAMPING_RX_SOFTWARE | SOF_TIMESTAMPING_SOFTWARE; info->phc_index = -1; } return 0; } |
bc1f44709 net: make ndo_get... |
629 630 |
static void vlan_dev_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *stats) |
9793241fe vlan: Precise RX ... |
631 |
{ |
5a4ae5f6e vlan: unnecessary... |
632 633 634 |
struct vlan_pcpu_stats *p; u32 rx_errors = 0, tx_dropped = 0; int i; |
9793241fe vlan: Precise RX ... |
635 |
|
5a4ae5f6e vlan: unnecessary... |
636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 |
for_each_possible_cpu(i) { u64 rxpackets, rxbytes, rxmulticast, txpackets, txbytes; unsigned int start; p = per_cpu_ptr(vlan_dev_priv(dev)->vlan_pcpu_stats, i); do { start = u64_stats_fetch_begin_irq(&p->syncp); rxpackets = p->rx_packets; rxbytes = p->rx_bytes; rxmulticast = p->rx_multicast; txpackets = p->tx_packets; txbytes = p->tx_bytes; } while (u64_stats_fetch_retry_irq(&p->syncp, start)); stats->rx_packets += rxpackets; stats->rx_bytes += rxbytes; stats->multicast += rxmulticast; stats->tx_packets += txpackets; stats->tx_bytes += txbytes; /* rx_errors & tx_dropped are u32 */ rx_errors += p->rx_errors; tx_dropped += p->tx_dropped; |
9793241fe vlan: Precise RX ... |
658 |
} |
5a4ae5f6e vlan: unnecessary... |
659 660 |
stats->rx_errors = rx_errors; stats->tx_dropped = tx_dropped; |
9793241fe vlan: Precise RX ... |
661 |
} |
6d4cdf47d vlan: add 802.1q ... |
662 |
#ifdef CONFIG_NET_POLL_CONTROLLER |
de93cb2ea vlan: static func... |
663 |
static void vlan_dev_poll_controller(struct net_device *dev) |
6d4cdf47d vlan: add 802.1q ... |
664 665 666 |
{ return; } |
a8779ec1c netpoll: Remove g... |
667 |
static int vlan_dev_netpoll_setup(struct net_device *dev, struct netpoll_info *npinfo) |
6d4cdf47d vlan: add 802.1q ... |
668 |
{ |
f3da38932 vlan: clean up so... |
669 670 |
struct vlan_dev_priv *vlan = vlan_dev_priv(dev); struct net_device *real_dev = vlan->real_dev; |
6d4cdf47d vlan: add 802.1q ... |
671 672 |
struct netpoll *netpoll; int err = 0; |
a8779ec1c netpoll: Remove g... |
673 |
netpoll = kzalloc(sizeof(*netpoll), GFP_KERNEL); |
6d4cdf47d vlan: add 802.1q ... |
674 675 676 |
err = -ENOMEM; if (!netpoll) goto out; |
a8779ec1c netpoll: Remove g... |
677 |
err = __netpoll_setup(netpoll, real_dev); |
6d4cdf47d vlan: add 802.1q ... |
678 679 680 681 |
if (err) { kfree(netpoll); goto out; } |
f3da38932 vlan: clean up so... |
682 |
vlan->netpoll = netpoll; |
6d4cdf47d vlan: add 802.1q ... |
683 684 685 686 |
out: return err; } |
de93cb2ea vlan: static func... |
687 |
static void vlan_dev_netpoll_cleanup(struct net_device *dev) |
6d4cdf47d vlan: add 802.1q ... |
688 |
{ |
f3da38932 vlan: clean up so... |
689 690 |
struct vlan_dev_priv *vlan= vlan_dev_priv(dev); struct netpoll *netpoll = vlan->netpoll; |
6d4cdf47d vlan: add 802.1q ... |
691 692 693 |
if (!netpoll) return; |
f3da38932 vlan: clean up so... |
694 |
vlan->netpoll = NULL; |
c9fbd71f7 netpoll: allow cl... |
695 |
__netpoll_free(netpoll); |
6d4cdf47d vlan: add 802.1q ... |
696 697 |
} #endif /* CONFIG_NET_POLL_CONTROLLER */ |
2dbf6b505 vlan: implement n... |
698 699 700 701 702 703 |
static int vlan_dev_get_iflink(const struct net_device *dev) { struct net_device *real_dev = vlan_dev_priv(dev)->real_dev; return real_dev->ifindex; } |
75b8846ac vlan: Add ethtool... |
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static const struct ethtool_ops vlan_ethtool_ops = { |
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.get_link_ksettings = vlan_ethtool_get_link_ksettings, |
b30200616 vlan: propogate e... |
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.get_drvinfo = vlan_ethtool_get_drvinfo, |
75b8846ac vlan: Add ethtool... |
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.get_link = ethtool_op_get_link, |
37dd9255b vlan: Pass ethtoo... |
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.get_ts_info = vlan_ethtool_get_ts_info, |
75b8846ac vlan: Add ethtool... |
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}; |
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static const struct net_device_ops vlan_netdev_ops = { .ndo_change_mtu = vlan_dev_change_mtu, .ndo_init = vlan_dev_init, .ndo_uninit = vlan_dev_uninit, .ndo_open = vlan_dev_open, .ndo_stop = vlan_dev_stop, |
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.ndo_start_xmit = vlan_dev_hard_start_xmit, .ndo_validate_addr = eth_validate_addr, .ndo_set_mac_address = vlan_dev_set_mac_address, .ndo_set_rx_mode = vlan_dev_set_rx_mode, |
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.ndo_change_rx_flags = vlan_dev_change_rx_flags, .ndo_do_ioctl = vlan_dev_ioctl, .ndo_neigh_setup = vlan_dev_neigh_setup, |
9618e2ffd vlan: 64 bit rx c... |
723 |
.ndo_get_stats64 = vlan_dev_get_stats64, |
f4d5392e5 vlan: use IS_ENAB... |
724 |
#if IS_ENABLED(CONFIG_FCOE) |
669d3e0ba vlan: adds vlan_d... |
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.ndo_fcoe_ddp_setup = vlan_dev_fcoe_ddp_setup, .ndo_fcoe_ddp_done = vlan_dev_fcoe_ddp_done, .ndo_fcoe_enable = vlan_dev_fcoe_enable, .ndo_fcoe_disable = vlan_dev_fcoe_disable, |
4ea09c9ca vlan: add support... |
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.ndo_fcoe_ddp_target = vlan_dev_fcoe_ddp_target, |
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#endif |
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#ifdef NETDEV_FCOE_WWNN .ndo_fcoe_get_wwn = vlan_dev_fcoe_get_wwn, #endif |
6d4cdf47d vlan: add 802.1q ... |
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#ifdef CONFIG_NET_POLL_CONTROLLER .ndo_poll_controller = vlan_dev_poll_controller, .ndo_netpoll_setup = vlan_dev_netpoll_setup, .ndo_netpoll_cleanup = vlan_dev_netpoll_cleanup, #endif |
8a0427bb6 vlan: convert VLA... |
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.ndo_fix_features = vlan_dev_fix_features, |
2dbf6b505 vlan: implement n... |
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.ndo_get_iflink = vlan_dev_get_iflink, |
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741 |
}; |
a48e5fafe vlan: free percpu... |
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static void vlan_dev_free(struct net_device *dev) { struct vlan_dev_priv *vlan = vlan_dev_priv(dev); free_percpu(vlan->vlan_pcpu_stats); vlan->vlan_pcpu_stats = NULL; |
a48e5fafe vlan: free percpu... |
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} |
ef3eb3e59 [VLAN]: Move devi... |
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void vlan_setup(struct net_device *dev) { ether_setup(dev); |
2e659c055 net: 8021q: conve... |
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dev->priv_flags |= IFF_802_1Q_VLAN | IFF_NO_QUEUE; |
e817af27e vlan: turn on uni... |
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dev->priv_flags |= IFF_UNICAST_FLT; |
028758788 net: better IFF_X... |
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dev->priv_flags &= ~IFF_TX_SKB_SHARING; netif_keep_dst(dev); |
ef3eb3e59 [VLAN]: Move devi... |
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|
656299f70 vlan: convert to ... |
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dev->netdev_ops = &vlan_netdev_ops; |
cf124db56 net: Fix inconsis... |
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dev->needs_free_netdev = true; dev->priv_destructor = vlan_dev_free; |
75b8846ac vlan: Add ethtool... |
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dev->ethtool_ops = &vlan_ethtool_ops; |
ef3eb3e59 [VLAN]: Move devi... |
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|
91572088e net: use core MTU... |
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dev->min_mtu = 0; dev->max_mtu = ETH_MAX_MTU; |
423049ab1 8021q: Use eth_<f... |
764 |
eth_zero_addr(dev->broadcast); |
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} |